Question
The ratio of present age of A to that of B is 5:4 and
the ratio of present age of A to that of C is 5:6. The average present age of A, B and C is 20 years. Find the age of B, after 8 years. TYPE HSolution
The ratio of present age of A, B and C = 5 : 4 : 6 (5x, 4x,6x) The average present age of A, B and C = 20 years => (5x + 4x + 6x)/3 = 20 => 15x = 60 => x = 4 The age of B, after 8 years = 4 × 4 + 8 = 24 years
Find the difference between angle and its complement if the angle is three-seventh of its complement.
A triangular field has sides 13 m, 14 m, and 15 m. A well with a diameter of 7 m is dug outside the field. If the entire soil dug from the well is used ...
If O is circumcentre of acute angled triangle ABC, if ∠ OBC = 150 then ∠BAC = ?
Find the area of triangle having sides in the ratio 3:5:7 & the perimeter of the triangle is 60 cm
If I is the incentre of ΔABC , if ∠BAC = 300 , then what is the measure of ∠BIC?
At the centre of a circle of 20 cm radius, the angle made by an arc of 24(4/9) cm length is
Orthocenter of an right angle triangle lies on
Angles of a triangle are in the ratio 3 : 5 : 10. Find the sum of the smallest and middle angle of the triangle.
The diagonals of a rectangle are inclined to one side of the rectangle at 25°. The acute angle formed between the diagonals is:
